Mercedes C-Class (Coupe) (2014) is 134 mm (5.28 inch) longer, 160 mm (6.30 inch) higher and has 147 liters (5.19 ft3) bigger cargo space than Porsche 718 Cayman (2020).
Porsche 718 Cayman (2020) is 33 mm (1.30 inch) wider and 154 kg (340 lbs) lighter than Mercedes C-Class (Coupe) (2014).